AP EAPCET 19-Aug-2021 Shift 2 Paper

Section: Mathematics
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Question : 50 of 160
 
Marks: +1, -0
The angle between the lines represented by cos‌θ(cos‌θ+1)‌x2−(2‌cos‌θ+sin2θ)xy+(1−cos‌θ)y2=0 is ______
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